Abstract
Abstract:
Results from a search for supersymmetry in events with four or more charged leptons (elec-
trons, muons and taus) are presented. The analysis uses a data sample corresponding to
36.1 fb−1 of proton–proton collisions delivered by the Large Hadron Collider at √s = 13 TeV
and recorded by the ATLAS detector. Four-lepton signal regions with up to two hadronic- ally
decaying taus are designed to target a range of supersymmetric scenarios that can be either
enriched in or depleted of events involving the production and decay of a Z boson. Data yields are
consistent with Standard Model expectations and results are used to set upper limits on the event
yields from processes beyond the Standard Model. Exclusion limits are set at the 95% confidence
level in simplified models of General Gauge Mediated supersym- metry, where higgsino masses are
excluded up to 295 GeV. In R-parity-violating simplified models with decays of the lightest
supersymmetric particle to charged leptons, lower limits of 1.46 TeV, 1.06 TeV, and 2.25 TeV are
placed on wino, slepton and gluino masses, respect-
ively.